Duplicating-machine.



PATENTED JUNE 23, 1903.

A. D. KLABER. DUPLIGATING MACHINE.

APPLICATION FILED JUNE 3, 1901.

4 SHEETS-SHEET 2.

N0 MODEL.

PATENTED JUNE 23, 1903.

A. D. KLABER.

DUPLIOATING MACHINE.

APPLICATION FILED JUNE 3, 1901.

4 SHEETS-S N0 MODEL.

No. 732,002. PATENTED JUNE 2a, 1903. A. D. KLABER.

DUPLIGATING MACHINE.

PPPPPPPPPPPPPPPPPP NH 3%,, 1901 UNITED STATES Patented .l'une 23, 1903.I

PATENT OEEIcE.

AUcUsTUs DAVID KLABER, OF LONDON, ENGLAND, ASSIGNOR TO A. B. DICKCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

DUPLICATING-MACHINE.

SPECIEIEOATIQN forming part of Letters Patent N 0. 732,002, dated June23, 1903.

Serial No- 62,999. (No model.)

To (LZZ whmn it may concern:

Be it known that I, AUGUSTUS DAVID KLA- BER, a subject of the King ofEngland, residing at London, England, have invented certain new anduseful Improvements in or Relating to Duplicating-ll/lachines, (forwhich application has been made in Great Britain under No. 8,544, datedApril 25, 1901,) of which the following is a specification.

This invention relates to improvements in or relating toduplicating-machines, and has particular reference to that type ofmachine in which a segmental or cylindrical stencilcarrier is employed,and has for its object to :5 provide a machine more simple in coustruction and which can be produced at a cheaper rate than those heretoforeplaced upon the market.

The machine comprisesa semicircular stenoil-carrier mounted in bearingsupon standards and adapted to be revolved by means of a handle, thehandle being secured direct to the carrier or shaft which carries thestencilcarrier. The standards supporting the stenoil-carrier are securedupon a base beneath which is mounted a rock-shaft. The rockshaft isprovided with arms supporting the pressure-roll which cooperates withthe stencil-carrier in the well-known manner. A fixed 3o stop or guideis provided, against which the paper is placed preparatory to beingpassed through the machine,and the pressure-roll,as it rises, raises theend of the paper before bringing it into contact with the stencil-car- 5rier, so that when the machine is operated the paper passes freely overthe stop against which it was placed preparatory to the machine beingput in action.

Various devices may be used for supplying the stencil with ink, the inkbeing applied, for instance, by a brush or by means of a pad placed onthe interiorside of the stencil-carrier or fed through the perforatedcarrier by means of a roller arranged within an ink- 4 5 trough andadapted to come into contact with the exterior surface of the carrier.

In the accompanying drawings, which illustrate one method of carryingout this invention, Figure l a side elevation of theduplicating-machine. Fig. 2 is a front elevation of the same, partly insection. Fig. 3 is a side elevation showing the parts of the machine inaction, and Fig. A is a plan with the stencil-carrier removed.

Like letters indicate like parts throughout the drawings.

Upon a base A, which is preferably of wood, are mounted two standards B,conveniently curved at their upper ends toward the rear end of themachine. In the upper ends of the standards is mounted a shaft B, uponwhich is rigidly secured a semicircular stencil-carrier C. Thestencil-carrier comprises two side portions 0, connected by 'a sheet ofperforated material 0 and strengthened at its ends by cross pieces C Atone end of the shaft B is secured a handle D, by means of which thestencil'carrier C may be rotatedin the ends of the standards B.

Beneath the base A, which may be sup- 7o ported from the surface uponwhich the machine is stood by corner-feet A, is mounted a rock-shaft E,carried in hangers E, secured to the under side of the base A. Upon therock-shaft E are secured two arms E which support apressuro-roll E Theroll E may be adapted to revolve either upon a spindle supported uponthe arms E or made fast to a spindle free to rotate in the arms E Theends of the arms E are connected by springs E to the upperrearwardly-curved ends of the standards B, so that when thestencilcarrier 0 is in the position indicated in Fig.

3 the pressure-roll is forced, by means of the springs E against thesurface of the carrier.

Pivoted to one of the arms E is one end of a link F, free to reciprocatevertically. The upper end of the link F is slotted at F", and the end ofthe shaft B, which supports the stencil-carrier, is passed through theslot, so that the shaft and the face of the standard and opposed face ofthe side 0 of the carrier serve as guides to the link. On the side 0 ofthe carrier C and integral with it is a cam F and upon the link E is apin F adapted to cooperate with the cam, so that when the cam is in theposition shown in Fig. 1 the link F is forced downward by the action ofthe cam upon the pin 1?. This movement of the link F is communicated tothe rock-shaft E too by the arm E to which the link is secured, so thatboth arms E are lowered against the ward over the roll E action of thesprings E and the roll E carried beneath the upper surface of the baseA. With the parts in this position the paper or other material toreceive the impression is placed upon the base A and the sheetimmediately to be operated upon is pushed for- To insure that the papershall always be advanced a given distance'when placing in position, astop G is provided, against which the forward end of the paper is laid.The stop G is conveniently formed from sheet metal stamped up into theshape of a barof rectangular crosssection and provided with fiat sideextensions G. The side extensions G are placed beneath the feet of theStandards B, so that when these latter are secured in position the stopwill be gripped between the feet of the standards and the base A. Byloosening the screws by which the standards B are secured to the base Athe stop G may be moved slightly backward or forward to allow a slightadjustment should it be desired to withdraw or advance the paperslightly, so that the impression may commence nearer to or farther fromthe top edge of the 'sheet.

It will be observed that the stop or guide G is in reality a fixture,although a slight amount of adjustment is allowed, as the stop whenadjusted always remains in position during the operation of the machineand is not, as in common practice, removed from its position while thepaper is being passed through the machine and replaced preparatory tothe next sheet being placed in position.

The operation of this machine is as follows: The top edge of the sheetwhich is to receive the impression being placed against the guide G, thestencil-carrier C is rotated by means of the handle D. As the front edgeof the stencil-carrier comes opposite the pressure-roll E the cam F willleave the pin F of the link F,so that the roll E will rise under theaction of the springs E and press the paper F against the surface of thecarrier, as shown in Fig. 3. The rotation of the carrier 0 beingcontinued,the paperwill pass through between the carrier-and roll in theWell-known manner, passing out of the machine over the stop G, abovewhich it has been raised by the roll E. To insure the removal of thepaper from the stencil, strippers H are provided, which catch the frontedge of the sheet, so that the whole sheet passes beneath the strippersas it is delivered from the machine. The strippers H are curved, asshown in Fig. 1, and rounded at their ends, as shown in Fig. 2, and aresecured to spindles H, carried in lugs H on the standards B.

When it is desired to retain the roll E in its lowered position, thelink F is locked in its depressed position by a catch J, secured to thebase A, and adapted to engage a pin J in the face of the link F.

To insure the paper or other material to receive the impression being inline laterally standards B.

with the stencil on the carrier, the usual adjustable side guide J isprovided.

The stencil may be secured to the stencilcarrier in any well-knownmanner and may be supplied with ink by hand by means of a brush orautomatically by a pad K, saturated with ink, placed against the innerside of the perforated part C of the carrier. The inkpad K may beretained in place by any suitable means, a light frame comprising twoside members K, connected by cross-pieces K forming a convenient devicefor retaining the pad against the interior segmental surfaceof thecarrier. The ends of the frame K K may be secured to the ends of thecarrier by screws K engaging spring clamps or tongues K which press uponthe edge of the end cross members K It is not desirable that the innerside of the pad should be covered in by any rigid substance, as shouldany part of the stencil indicate that there was not sufficient inksupplied at that point this defect may be remedied by pressing thefinger upon the rear of the pad, thus forcing more ink through theperforated carrier to the stencil. If the cross members K of the frameare made of thin material, these will not interfere with this method ofregulating the inksupply at different points. The back of the pad ispreferably covered with some impervious material, such as Americancloth.

The ink-pad K may be recharged with ink by removing it from the carrierand inking it with a brush or other convenient means, or it may besupplied with ink while in place upon the carrier in the followingmanner: Pivoted upon the spindles H of the strippers H is one end of aframe comprising two side members L, connected by a transverse member L.Mounted upon the end of the frame remote from the point at which it ispivoted on the spindles H is an ink-roller M, free to rotate in the endsof the members L.- Pivoted to one of the members L is a link N, the freeend of which is pivoted to a bell-crank lever N, pivotally mounted uponone of the The free end of the bell-crank lever N is provided with aroller N which projects in the path of the cam F, by which thepressure-roll is operated, and a spring N operating between one of themembers L and the adjacent standard B, always tend to move the framecarrying the ink-roller N in a direction toward the standards B, causingthe roller N to bear against the cam F The parts are so arranged that solong as the cam F? is in engagement with the roller N of the bell-cranklever N the ink-roller M is maintained in the position shown in Fig. 3;but as the rotation of the carrier 0 is continued the cam F leaves theroller N of the bellcrank lever l. and allows .the spring N to bring theframe carrying the ink-roller M toward the carrier 0, so that the rollerM is made to press against the exterior surface of the carrier. Thestencil having been previously removed from the carrier the ink-roller Mmay be allowed to cooperate with the carrier in the manner describeduntil sufficient ink has been supplied to the pad on the inside of thecarrier, after which the ink-roller M may be looked back in itsinoperative position by a catch 0.

The ink-roller M may be supplied with ink in any convenient manner. Itmay, for instance, be composed of some absorbent material charged withink, the ink being made to pass through the perforated material to theink-pad when the roller is in operation by the pressure of the rolleragainst the surface of the carrier, or the rollermay be made ofnon-absorbent or only partially-absorbent material, so that when forcedback by the cam F away from the stencil it may be made to enter anink-well, such as the trough P, from which it receives its supply ofink. The trough P may conveniently be supported from the base A by abracket P and contains sufficient ink to permit the lower part of theroller to be submerged when the spindle of the roller. rests in therecesses P with which the sides of the trough are provided.

In order that the ink-roller M may be completely coated with ink beforebeingbrought into contact with the stencil-carrier, it is provided witha handle P by which it may be rotated by hand before being put inoperation with the carrier.

Although the ink-roller M has been described as used to supply the padon the interior side of the carrier 0 with ink, it is found that whereonly a few copies are required the roller may be employed to ink theexterior surface of the carrier with the pad removed, sufficient inkbeing retained by the carrier to supply the stencil when in place with asufficient quantity of ink for a limited number of copies.

For convenience it is preferred to leave the edges of the perforatedpart 0 of the stencilcarrier unperforated, as at O", as it is found whenthe perforations are continued to the edge of the stencil that the inkoften creeps around the edge of the stencil-sheet and damages the sheetupon which the impression is being made.

In using these machines it is common prac tice to cover the face of thecarrier 0 with a cloth or thin pad K, which absorbs the ink fed throughfrom the inner side of the carrier or applied externally and feeds thesame evenly through the stencil. This cloth, therefore, may be called anink-pad and is employed in this machine. \Vhen onlya small number ofprints are required, it is found sufficient to ink this cloth by meansof the roller M, the ink-pad within the carrier being dispensed with.The cloth thus becomes an ink-pad and is termed such in the followingclaims, the ink-pad within the carrier being designated as the reservoirink-pad for the sake of distinction. There it is desired to feed a freshsupply of ink into the reservoir ink-pad, the cloth or ink-pad on theface of l to secure by Letters Patent, is

with a fresh charge of ink if the machine has been out of use for anyconsiderable time. One application of the roller M, however, is usuallyfound sufficient for this purpose, or if the roller is not employed thesurface of the ink-pad may be moistened by applying slight pressurebehind the reservoirink-pad, so that the external ink-pad is moistenedby the ink thus forced through the perforated carrier.

What I claim as my invention, and desire 1. Ina duplicating-machine thecombination of a perforated segmental stencil-carrier, an ink-pad on theface of the carrier, means for supporting the carrier, means forrotating the carrier, a reservoir ink-pad secured on the inner side ofthe carrier, a pressureroll adapted to cooperate with the carrier, asupport for the material to be printed intermediate of thestencil-carrier and pressureroll, a stationary stop to position thematerial in a forward direction, means for bringing the pressure-rollagainst the face of the carrier and simultaneously lifting the materialover the stop, and means for withdrawing the pressure-roll as setforth.

2. In a duplicating-machine the combina tion of a perforated segmentalstencil-carrier, an ink-pad on the face of the carrier, means forsupporting the carrier, means for rotating the carrier, a reservoirink-pad secured on the inner side of the carrier, an ink-roller, meansfor automatically bringing the inkroller into contact with the outerface of the carrier, means for locking the ink-roller out of action, apressure-roll adapted to cooperate with the carrier, a support for thematerial to be printedintcrmediate of the stencilcarrier andpressure-roll, a stationary stop to position the material in a forwarddirection, means for bringing the pressure-roll against the face of thecarrier and simultaneously lifting the material over the stop, and meansfor withdrawing the pressure-roll as set forth.

3. In a duplicating-machine the combination of a perforated segmentalcarrier, an inkpad on the face of the carrier, means for supporting thecarrier, means for rotating the carrier, a reservoir ink-pad secured onthe inner side of the carrier, an ink-roller, means for automaticallybringing the ink-roller into contact with the outer face of the carrier,means for locking the ink-roller out of,action, means for supplying thisroller with ink, a pressure-roll adapted to cooperate with the carrier,a support for the material to be printed intermediate of thestencil-carrier and pressure-roll, a stationary stop to position the amaterial in a forward direction, means for bringing the pressure-rollagainst the face of the carrier and simultaneously lifting the materialover the stop, and means for withdrawing the pressure-roll as set forth.

4:. In a duplicating-machine the combination of a perforated segmentalstencil-carrier,

an ink-pad on the face of the carrier, means for supporting the carrier,means forrotating the carrier, a reservoir ink-pad secured on the innerside of the carrier, means to prevent the ink from the pad from creepingaround the edges of the stencil, an ink-roller, means for automaticallybringing the inkroller into contact with the outer face of the carrier,means for locking the ink-roller out of action, means for supplying thisroller an ink-pad on the face of the carrier, means -for supporting thecarrier, means for rotating the carrier, a reservoir ink-pad secured tothe inner side of the carrier, a pressure-roll adapted to cooperate withthe carrier, a support for the material to be printed intermediate -ofthe stencil-carrier and pressure roll, a stationary stop to position thematerial in a forward direction, means for bringing the pressure-rollagainst the face of the carrier and simultaneously lifting the materialover the 'stop, means for automatically bringing the ink-roller intocontact with the face of the carrier when the latter is rotated, meansfor similarly withdrawing the roller from the face of the carrier, anink-trough adapted to receive the roller when withdrawn from the carrierand means for locking-the roller in its withdrawn position as set forth.

6. In a duplicating-machine the combination of a perforated segmentalstencil-carrier, an ink-pad on the face of the carrier, means forsupporting the carrier, means for rotating the carrier, an ink-roller,means for automatically bringing the ink-roller into contact with theouter face of the carrier, means for locking the ink-roller out ofaction, a pressure-roll adapted to cooperate with the carrier, a supportfor the material to be printed intermediate of the stencil-carrier andpressure-roll, a stationary stop to position the material in a forwarddirection, means for bringing the pressure-roll against the face of thecarrier and simultaneously lifting the material over the stop, and meansfor withdrawing the pressure-roll as set forth.

7. In a duplicating-machine the combination of a perforated segmentalcarrier, an inkpad on the face of the carrier, means for supporting thecarrier, means for rotating the carrier, an inkroller, means forautomatically bringing the ink-roller into contact with the outer faceof the carrier, means for locking the ink-roller out of action, meansfor supplying this roller with ink, a pressureroll adapted to cooperatewith the carrier, a support for the material to be printed intermediateof the stencil-carrier and pressureroll, a stationary stop to positionthe material in a forward direction, means for bringing thepressure-roll against the face of the carrier and simultaneously liftingthe material over the stop, and means for withdrawing the pressure-rollas set'forth.

8. In a duplicating-machine the combination of a perforated segmentalstencil-carrier, an ink-pad on the face of the carrier, means forsupporting the carrier, means for rotating the carrier, means to preventthe ink from the pad from creeping around the edges of the stencil, anink-roller, means for automatically bringing the ink-roller into contactwith the outer face of the carrier,'means for locking the ink-roller outof action, means for supplying this roller with ink, a pressure-rolladapted to cooperate with the carrier, a support for the material to beprinted intermediate of the stencil-carrier and pressure-roll, astationary stop to position the material in a forwarddirection, meansfor bringing the pressure-roll against the face of the carrier andsimultaneously lifting the material over the stop, and means forwithdrawing the pressure-roll as set forth.

9. In a duplicating-machine the combination of a perforated segmentalstencil-carrier, an ink-pad on the face of the carrier, means forsupporting the carrier, means for rotating the carrier, a pressure-rolladapted to cooperate with the carrier, a support for the material tobeprinted intermediate of the stencilcarrier and pressure-roll, astationary stop to position the material in a forward direction,

means for bringing the pressure-roll against the face of the carrier andsimultaneously lifting the material over the stop, means for withdrawingthe pressure-roll, an ink-roller,

'means for automatically bringing the inkroller into contact with theface of the carrier when the latter is rotated, means for similarlywithdrawing the roller from the face of the carrier, an ink-troughadapted to receive the roller when withdrawn from the carrier and meansfor locking the roller in its withdrawn position as set forth.

10. ,In a duplicating-machine the combination of a perforated segmentalstencil-carrier, an ink-pad on the face of the carrier, means forsupporting the carrier, means for rotating the carrier, a reservoirink-pad adapted to lie against the inner side of the stencil-carrier, anopen frame to support the reservoir inkpad, means for securing the frameto the carrier, a pressure-roll adapted to cooperate with the carrier, asupport for the material to be printed intermediate of thestencil-carrier and pressure-roll, a stationary stop to position thematerial in a forward direction, means for bringing the pressure-rollagainst the face of the carrier and simultaneously lifting the materialover the stop, and means for withdrawing the pressure-roll as set forth.

11. In a duplicating-machine the combination of aperforated segmentalstencil-carrier, an ink-pad on the face of the carrier, means forsupporting the carrier, means for rotating the carrier, a reservoirink-pad secured to the inner side of the carrier, a pressureroll adaptedto cooperate with the carrier, a support for the material to be printedintermediate of the stencil-carrier and pressureroll, a stationary stopto position the material in a forward direction, means for bringing thepressure-roll against the face of the carrier and simultaneously liftingthe material over the stop, means for withdrawing the pressure-roll, anink-roller, pivoted arms for supporting the roller, a spring whichalways tends to bring the roller against the face of the carrier, abell-crank lever pivoted to the frame of the machine, a cam secured tothe carrierand adapted to engage one end of the bell-crank lever, a linkconnecting the other end of the bell-crank lever with the roller so thatwhen the cam strikes the bell-crank lever the roller is forced backagainst the action of its spring, and means for locking the roller inits withdrawn position as set forth.

12. In a duplicating-machine the combination of a perforated segmentalstencil-carrier, an ink-pad on the face of the carrier, means forsupporting the carrier, a reservoir inkpad secured to the inner side ofthe carrier, a pressure-roll adapted to cooperate with the carrier, asupport for the material to be printed intermediate of thestencilcarrier and pressure-roll, a stationary stop to position thematerial in a forward direction, means for bringing the pressure-rollagainst the face of the carrier and simultaneously lifting the materialover the stop, means for withdrawing the pressure-roll, an ink-roller,means for antomatically bringing the ink-roller against the face of thecarrier when the latter is rotated, means for similarly withdrawing theroller from the face of the carrier, an ink-trough adapted to receivethe roller when withdrawn from the face of the carrier, and means forlocking the roller in its withdrawn position as set forth.

13. In a duplicating-machine the combination of a perforated segmentalstencil-carrier, an ink-pad on the face of the carrier, unperforatededges to the carrier, means for supporting the carrier, means forrotating the carrier, a reservoir ink-pad secured to the inner side ofthe carrier, a pressure-roll adapt-- ed to cooperate with the carrier, asupport for the material to be printed intermediate of thestencil-carrier and pressure-roll, a stationary stop to position thematerial in a forward direction, means for bringing the pressure-rollagainst the face of the carrier and simultaneously lifting the materialover the stop,

and means for withdrawing the pressure-roll as set forth.

14. In aduplicating-machine the combination of a perforated segmentalstencil-carrier, an ink-pad on the face of the carrier, means forsupporting the carrier, means for rotating the carrier, a reservoirink-pad secured to the inner side of the carrier, a pressure-rolladapted to cooperate with the carrier, a support for the material to beprinted intermediate of the stencil-carrier and pressure-roll, astationary stop to position the material in a forward direction, meansfor bringing the pressure-roll against the face of the carrier andsimultaneously lifting the material over the stop, means for withdrawingthe pressure-roll, an ink-roller, pivoted arms for supporting theroller, a spring which always tends to bring the roller against the faceof the carrier, a bell-crank lever pivoted to theframe of the machine, acam secured to the carrier and adapted to engage one end of thebell-crank lever, a link connecting the other end of the bell-cranklever with the roller so that when the cam strikes the bell-crank leverthe roller is forced back against the action of its spring, anink-trough adapted to receive the roller when forced away from the faceof the carrier, and means for locking the roller in its withdrawnposition as set forth.

15. In a duplicating-machine the combination of a perforated segmentalstencil-carrier, an ink-pad on the face of the carrier, means forsupporting the carrier, means for rotating the carrier, a pressure-rolladapted to cooperate with the carrier, a support for the material to beprinted intermediate of the stencil-carrier and pressure-roll, astationarystop to position the material in a forward direction, meansfor bringing the pressure-roll against the face of the carrier andsimultaneously lifting the material over the stop, means for withdrawingthe pressure-roll, an ink-roller, pivoted arms for supporting theroller, a spring which always tends to bring the roller against the faceof the carrier, a bell-crank lever pivoted to the frame of the machine,a cam secured to the carrier and adapted to engage one end of thebell-crank lever, a link connecting the other end of the bell-cranklever with the roller so that when the cam strikes the bell-crank leverthe roller is forced back against the action of its spring, and meansfor locking the roller in its withdrawn position as set forth.

16. In a duplicating-machine the combination of a perforated segmentalstencil-carrier, an ink-pad on the face of the carrier, means forsupporting the carrier, means for rotating the carrier, a pressure-rolladapted to cooperate with the carrier, a support for the material to beprinted intermediate of the stencil-carrier and pressure-roll, astationary stop to position the material in a forward direction, meansfor bringing the pressure-roll against the face of the carrier andsimultaneously lifting the material over the stop, means for withdrawingthe pressure-roll, an ink-roller, means for automatically bringing theinkroller against the face of the carrier when the latter is rotated,means for similarly withdrawing the roller from the face of the carrier,an ink-trough adapted to receive the roller when withdrawn from the faceof the carrier, and means for locking the roller in its withdrawnposition as set forth.

17. In a duplicating-machine the combination of a perforated segmentalstencil-carrier, an ink-pad 0n the face of the carrier, means forsupporting the carrier, a pressure-roll adapted to cooperate with thecarrier, a support for the material to be printed intermediate of thestencil-carrier and pressureroll, a stationary stop to position thematerial in a forward direction, means for bringing the pressure-rollagainst the face of the carrier and simultaneously lifting the materialover the stop, means for withdrawing the pressurero'll, an ink-roller,pivoted arms for supporting the roller, a spring which always tends tobring the roller against the face of the carrier, a bell-crank leverpivoted to the frame of the machine, a cam secured to the carrier andadapted to engage one end of the bellcrank lever, a link connecting theother end of the bell-crank lever with the roller so that when the camstrikes the bell-crank lever the roller is forced back against theaction of its spring, an ink-trough adapted to receive the roller whenforced away from the face of the carrier, and means for locking theroller in its withdrawn position as set forth.

18. In a duplicating-machine the combination of a perforated segmentalstencil-carrier, I an ink-pad on the face of the carrier, means ,forsupporting the carrier, means for rotating the carrier, a reservoirink-pad secured to the inner side of the carrier, a pressureroll mountedbeneath the vcarrier, a support for the material to be operated uponintermediate of the stencil-carrier and pressure-roll,

.a stationary stop on this support to position the material in a forwarddirection with a clearance between the top edge of the stop and thelowest point of the carrier, means whereby the pressure-roll is allowedto rise or fall, a spring which always tends to raise the roll and bringit against the face of the carrier simultaneously lifting the materialover the stop, a link secured at one end to the roll, a bearing for theother end of the link, a pin on the link, a cam integral with thecarrier and adapted to engage the pin on the link, an ink-roller,pivoted arms for sup porting the roller, a spring which always tends tobring the roller against the face of the carrier, a bell-crank leverpivoted to one of the supports of the carrier one end of the lever beingmade to project into the path of the cam which operates thepressure-roll, a link connecting the free end of the bell-crank leverand the roller, an ink-trough adapted to receive the roller when forcedaway from the surface of the carrier, and means for looking the rollerin its withdrawn position as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

AUGUSTUS DAVID KLABER.

WVitnesses:

HAROLD WADE, HARRY B. BRIDGE.

